21268258

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1$

素因数の和:163

約数の個数: 64

約数和(自身を含む): 40279680

約数和(自身を除く): 19011422

約数列:

[1, 2, 11, 17, 19, 22, 34, 38, 41, 73, 82, 146, 187, 209, 323, 374, 418, 451, 646, 697, 779, 803, 902, 1241, 1387, 1394, 1558, 1606, 2482, 2774, 2993, 3553, 5986, 7106, 7667, 8569, 13243, 13651, 15257, 15334, 17138, 23579, 26486, 27302, 30514, 32923, 47158, 50881, 56867, 65846, 101762, 113734, 145673, 259369, 291346, 518738, 559691, 625537, 966739, 1119382, 1251074, 1933478, 10634129, 21268258]

約数ペア:

[(1, 21268258), (2, 10634129), (11, 1933478), (17, 1251074), (19, 1119382), (22, 966739), (34, 625537), (38, 559691), (41, 518738), (73, 291346), (82, 259369), (146, 145673), (187, 113734), (209, 101762), (323, 65846), (374, 56867), (418, 50881), (451, 47158), (646, 32923), (697, 30514), (779, 27302), (803, 26486), (902, 23579), (1241, 17138), (1387, 15334), (1394, 15257), (1558, 13651), (1606, 13243), (2482, 8569), (2774, 7667), (2993, 7106), (3553, 5986)]